UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 300, 
  token = 'PKFgaTv6dk/LqgjcnSWHu2dCopP1fYdSYeWVypLI/Ng=' 
WHERE 
  key_id = 'e8e04b58c18e06e83ffff25a397e0acce52cce080d72ee56d70fde0edbfd1e7c' 
  AND (
    token = 'PKFgaTv6dk/LqgjcnSWHu2dCopP1fYdSYeWVypLI/Ng=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )